Timothy Charles Harrington (1851 – 12 March 1910) was an Irish journalist, barrister, nationalist politician and Member of Parliament (MP) in the House of Commons of the United Kingdom.

In 1884, Harrington published a pamphlet, "Maamtrasna Massacres - Impeachment of the Trials" in which he dismantled the Crown Prosecution's case against the eight men accused of the murders of the Joyce family on 17 August 1882.

[3] Harrington was secretary and chief organiser of the Irish National League (INL), a supporter of Charles Stewart Parnell and was largely responsible for devising the agrarian Plan of Campaign in 1886.

He was briefly considered as a possible alternative to John Redmond as leader of the re-united Irish Parliamentary Party in 1900 when he stood in the general election that year as a Nationalist again.

On Saturday, 7 September 1901, the Lord Mayor of Dublin, Harrington kicked off at the official ceremony to open Bohemian FC's new home, Dalymount Park.